Growth of the functional layer and prevention of menstruation during pregnancy are brought about by secretion of
A. relaxin.
B. progesterone.
C. cortisol.
D. human chorionic thyrotropin.
E. human placental lactogen.
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Question 2) Blood vessel growth within the uterus is promoted by the hormone __________.
Fill in the blank with correct word.
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Question 3) To prepare for the strain of labor and delivery, female reproductive hormones cause ligaments of pelvic joints to tighten.
Indicate whether this statement is true or false.
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Question 4) In pregnant women, the high levels of estrogen and progesterone secretion seem to lead to
A. stronger nails and fuller hair.
B. weaker nails and thinner hair.
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Question 5) During pregnancy, the levels of CRH and aldosterone within a mother's blood decline.
Indicate whether this statement is true or false.
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Question 6) The trimester during which an embryo becomes a fetus is the _________ trimester.
A. first
B. second
C. third
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Question 7) Substances that can cause birth defects or the death of the embryo are referred to as __________.
Fill in the blank with correct word.
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Question 8) The process of organogenesis begins in the fetal period.
Indicate whether this statement is true or false.
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Question 9) The second trimester of a pregnancy includes months
A. 2-5
B. 4-6
C. 5-7
D. 5-9
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Question 10) Increases in weight of the conceptus are largest during the _________ two months of pregnancy.
A. first
B. middle
C. last
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